There's no law that says you have to wear flashes or special shoes. If your wearing kilt hose, however, flashes do help keep them up.

You don't mention what kind of look your going for, hitting the pubs, wearing to work, etc. A lot of members who wear their kilts casually, go for the boots and scrunched down hose look. The style pics are a good resource for seeing how different people wear their kilts.

Best regards,

Jake